For the preparation of women older than 35 years old is considered to be older women, for older women because of ovarian function or all aspects of the body may be different from young women, so if you have reached the age of 35 years old or more, in the preparation for pregnancy before you need to go to the hospital to carry out a systematic checkup. Specific pre-pregnancy checkups are as follows: 1) a gynecological clinic for a six-item reproductive test to assess whether there are any problems with ovarian hormone levels; 2) a gynecological ultrasound to assess whether there are any problems with the uterus and ovaries; and 3) a heart checkup and a thyroid function checkup. All the above aspects of the examination are very important for older women. If there are problems with thyroid function, thyroid hormone levels are an important indicator of a good embryo. If thyroid function is found to be abnormal before conception, medication may be needed to control TSH levels, or thyroid stimulating hormone levels, to an ideal state before pregnancy. Many older women have problems with blood sugar metabolism and need to be tested to see if they need to take medication. If the blood sugar is very high, the chances of miscarriage or fetal abnormalities are very high, so it is recommended that the blood sugar be controlled to an ideal level before pregnancy. For older women, pre-pregnancy checkups are very extensive and need to be more comprehensive, and professional advice must be sought at a professional gynecology clinic when preparing for pregnancy.